Nissan’s introduction of the totally redesigned Altima for 2013 has raised a lot of eyebrows. The vehicle features a wide range of driver assisted technology that use a variety of sensors. There are front facing cameras to watch the painted lines on the road to warn drivers of an unintended lane departure. The rear camera monitors blind spots using sonar arrays to check the area around the vehicle for obstructions. This same camera will also warn the driver of objects behind them when the vehicle is in reverse.